The system call mechanism has been made more secure, and some unnecessary system calls have been removed.

Author: OpenSoftware-World

SystemLib/SysCalls/syscall.c

@@ -1,8 +1,5 @@
 #include "syscall.h"
 
-static securchk_result_t g_sec_result;
-static int g_sec_initialized = 0;
-
 int syscall(int id, void* arg) {
     return syscall_handler(id, arg);
 }
@@ -25,26 +22,6 @@ int syscall_handler(int id, void* arg) {
         case SYSCALL_REBOOT:
             sys_next_status("R", 0);
             return 0;
-
-        case SYSCALL_SECURCHK_INIT:
-            securchk_init();
-            g_sec_initialized = 1;
-            return 0;
-
-        case SYSCALL_SECURCHK_RUN:
-            if (!g_sec_initialized) securchk_init();
-            if (arg)
-                securchk_run((securchk_result_t*)arg);
-            else
-                securchk_run(&g_sec_result);
-            return 0;
-
-        case SYSCALL_SECURCHK_STATUS:
-            if (!g_sec_initialized) return -1;
-            if (arg)
-                *(securchk_result_t*)arg = g_sec_result;
-            return securchk_get_overall_status(&g_sec_result);
-
         default:
             return -1;
     }

SystemLib/SysCalls/syscall.h

@@ -1,18 +1,12 @@
 #ifndef SYSCALL_H
 #define SYSCALL_H
 
-#include <OpenKernel/Drivers/Vga/vga.h>
-#include <OpenKernel/Kernel/KernelServices/SystemManagement/sysmng.h>
-#include <OpenKernel/Kernel/KernelServices/SecurityChecker/securchk.h>
+#include "syscall_extern.h"
 
 #define SYSCALL_PRINT           0
 #define SYSCALL_CLEAR_SCREEN    1
 #define SYSCALL_SHUTDOWN        2
 #define SYSCALL_REBOOT          3
-#define SYSCALL_SECURCHK_INIT   4
-#define SYSCALL_SECURCHK_RUN    5
-#define SYSCALL_SECURCHK_STATUS 6
-#define SYSCALL_MAX_ID          31
 
 int syscall(int id, void* arg);
 int syscall_handler(int id, void* arg);

SystemLib/SysCalls/syscall_extern.h

@@ -0,0 +1,8 @@
+#ifndef SYSCALL_EXTERN_H
+#define SYSCALL_EXTERN_H
+
+extern void vga_print_scr(const char *str);
+extern void vga_clear_screen(const char *mode);
+extern void sys_next_status(const char *mode, uint32_t seconds);
+
+#endif